11449905 has 32 divisors (see below), whose sum is σ = 19008000. Its totient is φ = 5882112.

The previous prime is 11449903. The next prime is 11449927. The reversal of 11449905 is 50994411.

It is not a de Polignac number, because 11449905 - 2¹ = 11449903 is a prime.

It is a super-2 number, since 2×11449905² = 262200649018050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11449903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76771 + ... + 76919.

It is an arithmetic number, because the mean of its divisors is an integer number (594000).

Almost surely, 2^11449905 is an apocalyptic number.

11449905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11449905 is a deficient number, since it is larger than the sum of its proper divisors (7558095).

11449905 is a wasteful number, since it uses less digits than its factorization.

11449905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11449905 is about 3383.7708255732. The cubic root of 11449905 is about 225.3896458254.

The spelling of 11449905 in words is "eleven million, four hundred forty-nine thousand, nine hundred five".